deferable

wrapper for promises to allow to defer the execution

Deferable

Wrapper for promises to allow to defer the execution.

Prerequisites

None. It only requires Promise capable version javascript interpreter. e.g. Node version(0.12 and higher)

$ npm -v && node -v
6.4.1
v8.16.0

Table of contents

• Project Name
  • Prerequisites
  • Table of contents
  • Getting Started
  • Installation
  • Usage
    • Factory flavor
    • Class Flavor
    • Running the tests
    • Building a distribution version
  • Contributing
  • Credits
  • Built With
  • Versioning
  • Authors
  • License

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

clone the repository and from inside run the usual

$ npm run test
$ npm run build

Installation

BEFORE YOU INSTALL: please read the prerequisites

Start with cloning this repo on your local machine:

$ cd npm-project
$ npm install deferable

Usage

Factory Flavor: Defer

This is a simple factory method returning a holder object for promise and the

Inside your project:

import {
    Defer
} from 'deferable'

const { result, ...lever } = Defer(function() {
    // returning the actual operation which returns promise e.g.
    return http.call(url)
    }, "result")


// passing a promise to where is it expected
consumerService(result)
...
// at some point in the code this triggers the promise fulfillment
lever.trigger()

It returns an object with three keys: promise, trigger, called;

- first contains the actual promise which can be consumed.
- trigger is a function which triggers the promise fulfillment.
- called is a flag

Class flavor: Deferred, DeferredTrigger

In essence the class implementation of the above. Objects Deferred and DeferredTrigger is typeof Promise should your project require this feature.

import {
    DefferedTrigger
} from 'deferable';

const deferred = new Deferred(() => http.call(url))

// passing a promise to where is it expected
consumerService(deferred.promise)

// at some point in the code this triggers the promise fulfillment
deferred.trigger()

Deferred class is just a plain implementation of the deferred pattern exposing resolve and reject resolvers.

import {
    Deffered
} from 'deferable';

const deferred = new Deffered()

// passing a promise to where is it expected
consumerService(deferred)

// at some point in the code this triggers the promise fulfillment
thanableService().then((data) => {
    deferred.resolve(data)
});

Running the tests

$ npm test

Building a distribution version

$ npm run build

This task will create a distribution version of the project inside your local dist/ folder

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Add your changes: git add .
4. Commit your changes: git commit -am 'Add some feature'
5. Push to the branch: git push origin my-new-feature
6. Submit a pull request :sunglasses:

Credits

TODO: Write credits

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

Authors

• Andrej Bartko - Initial work - AndrejBartko

See also the list of contributors who participated in this project.

License

MIT License © 2012-2022 Scott Chacon and others